Below are the release notes the Microsoft Azure Service Bus NuGet package:

EventHub/Messaging: Fixed a bug where some of the Amqp session error are not mapped to MessagingCommunicationException. These are now returned as MessagingCommunicationException.

EventHub: Add ability to receive from EndOfStream. You can now create receiver using EventHubConsumerGroup.EndOfStream as the offset and the receiver will start receiving from the current last offset (at the time of receiver creation).

EventHub: Fixed a bug where max link credit may not have been set to the correct upper bound in some cases when user use the PrefetchSizeInBytes feature.